Finding the Fourth Proportional to 404,580.85, 606,363.82 and 214,572.24

Step by Step Solution

1. Step 1: Write the proportion equation
   404,580.85 : 606,363.82 = 214,572.24 : x
2. Step 2: Convert to fraction form
   404,580.85/606,363.82 = 214,572.24/x
3. Step 3: Cross multiply
   404,580.85x = 606,363.82 × 214,572.24
4. Step 4: Simplify right side
   404,580.85x = 130,108,842,039.50
5. Step 5: Solve for x
   x = 130,108,842,039.50/404,580.85
6. Step 6: Final answer
   x = 321,589.23